Roentgenographic evaluation of the rectal valves of houston in the normal and in ulcerative colitis.
D000328:Adult; D001466:Barium Sulfate; D003093:Colitis, Ulcerative / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D012002:Rectal Diseases / Q000000981:diagnostic imaging; D012007:Rectum / Q000033:anatomy & histology / Q000000981:diagnostic imaging*
D001466:Barium Sulfate